Table 2.
Mean concentration of H2S, CH3SH, and CH3SCH3 according to the time period
| Concentration | Pediatric (n=30) | Adult (n=30) | P-value |
|---|---|---|---|
| Preoperative (ppb) | |||
| H2S | 97.4±32.1 | 99.5±49.5 | 0.846 |
| CH3SH | 26.0±8.7 | 24.6±12.1 | 0.617 |
| CH3SCH3 | 10.5±5.9 | 9.4±7.3 | 0.499 |
| Postoperative day 1 (ppb) | |||
| H2S | 138.1±36.5 | 143.3±55.3 | 0.671 |
| CH3SH | 40.5±10.5 | 36.4±14.1 | 0.211 |
| CH3SCH3 | 15.8±6.7 | 15.6±10.0 | 0.952 |
| Postoperative wk 1 (ppb) | |||
| H2S | 126.3±35.0 | 132.7±55.3 | 0.596 |
| CH3SH | 32.8±10.1 | 27.6±13.5 | 0.098 |
| CH3SCH3 | 12.5±6.2 | 11.0±8.8 | 0.447 |
| Postoperative wk 2 (ppb) | |||
| H2S | 71.5±27.4 | 71.6±30.1 | 0.989 |
| CH3SH | 15.1±7.8 | 14.4±7.1 | 0.730 |
| CH3SCH3 | 3.7±2.8 | 3.1±2.8 | 0.358 |
Values are presented as mean±standard deviation.
H2S, hydrogen sulfide; CH3SH, methyl mercaptan; CH3SCH3, dimethyl sulfide.